Rio Tinto Plc (RIO) Options Chain

NYSE: RIOBasic MaterialsMetal MiningUSD

93.34+0.18 (+0.19%)

At close: Oct 8, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 8
Share price: $93.34
Put/call ratio (OI): 0.80
Put/call ratio (volume): 1.14
ATM implied volatility: 36.9%
Expected move: ±$5.09
Open interest (C / P): 17.59K / 13.99K

RIO options summary

The RIO options chain for the October 16, 2026 expiration lists 25 call and 18 put contracts, with 8 days until expiration. Open interest stands at 17,594 calls and 13,988 puts, a put/call ratio of 0.80, which is fairly balanced between calls and puts. At-the-money implied volatility near the $92.50 strike is 36.9%, which implies the market expects a move of about ±$5.09 (5.5%) in Rio Tinto Plc stock by expiration.

The most open interest sits at the $130.00 call (3.27K contracts) and the $87.50 put (5.02K contracts).

Summary generated from market data by MetaCap's automated system. Methodology

RIO options chain · October 16, 2026

RIO calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
—	—	—	—	—	—	50.00	0.00	0.60	0.80	229.7%	10	11
—	—	—	—	—	—	55.00	0.00	0.40	0.10	185.2%	3	54
0	—	—	36.54	0.00	0.00	60.00	0.00	0.35	0.08	154.7%	4	12
—	—	—	—	—	—	65.00	0.00	1.60	0.05	178.3%	1	16
2	1	188.5%	24.35	21.40	25.10	70.00	0.00	1.20	0.10	138.5%	1	61
0	70	—	22.60	0.00	0.00	75.00	0.00	0.15	0.05	73.4%	1	56
0	5	—	21.18	0.00	0.00	77.50	0.00	0.15	0.05	64.1%	1	663
14	1	66.2%	22.80	12.70	14.40	80.00	0.00	0.20	0.05	57.2%	157	593
0	10	—	15.85	0.00	0.00	82.50	0.05	0.15	0.10	51.6%	2	890
0	1	65.2%	12.39	7.80	9.10	85.00	0.05	0.20	0.10	44.2%	11	650
14	1	51.5%	6.00	5.50	6.60	87.50	0.10	0.55	0.27	45.6%	13	5,018
279	3	48.0%	6.31	3.50	4.60	90.00	0.35	0.75	0.60	36.8%	23	2,019
712	17	41.1%	2.19	2.00	2.70	92.50	1.00	1.40	1.28	32.6%	29	394
RIO $93.34
566	43	33.5%	1.02	0.90	1.15	95.00	2.55	2.85	3.27	34.3%	2	1,110
1,046	38	41.0%	0.50	0.40	0.80	97.50	3.90	5.20	5.20	46.3%	97	1,268
3,004	56	40.1%	0.15	0.15	0.35	100.00	6.50	7.60	7.12	56.7%	13	986
1,941	16	51.5%	0.10	0.05	0.20	105.00	10.50	12.40	12.67	72.7%	1	187
3,209	4	52.7%	0.05	0.00	0.10	110.00	16.30	18.40	15.53	89.4%	1	0
1,765	4	68.4%	0.10	0.00	0.15	115.00	—	—	—	—	—	—
488	10	83.2%	0.07	0.00	0.20	120.00	—	—	—	—	—	—
714	2	78.9%	0.03	0.00	0.05	125.00	—	—	—	—	—	—
3,270	3	88.3%	0.05	0.00	0.05	130.00	—	—	—	—	—	—
304	14	96.9%	0.05	0.00	0.05	135.00	—	—	—	—	—	—
121	3	165.8%	0.11	0.00	1.15	140.00	—	—	—	—	—	—
12	1	178.2%	0.08	0.00	1.20	145.00	—	—	—	—	—	—
103	1	141.4%	0.20	0.00	0.20	150.00	—	—	—	—	—	—
30	1	223.6%	0.05	0.00	2.15	155.00	—	—	—	—	—	—
0	20	50.0%	0.43	0.00	0.00	160.00	—	—	—	—	—	—

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the RIO put/call ratio?

For the October 16, 2026 expiration, the RIO put/call ratio based on open interest is 0.80 (13,988 puts vs 17,594 calls), and 1.14 based on today's volume. A ratio above 1 means more puts than calls.

What is RIO's implied volatility?

At-the-money implied volatility for RIO options expiring October 16, 2026 is about 36.9%, an annualized estimate of how much the market expects Rio Tinto Plc stock to move.

How many RIO option expiration dates are there?

RIO has 10 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.